Hydraulic air compressor or pump.



o. H. MUELLER. HYDRAULIC AIR COMPRESSOR 0B PUMP.

IffLIOATION FILED AUG.`14, 1909.

Patented Ju1y2, 1912.

V/vv@ z l. Umano 'saafr is! rarnnr onirica.

OTTO H. MUELLER, OF CAMBERWELL, ENGLAND, ASSIGNOR TO HENRY R.

WORTHINGTONQ A CORPORATION OI NEW JERSEY.

HYDRAULIC AIR COMPRESSOR OR PUMP.

Specification of Letters Patent. l

Patented July 2, i912.

lApplication filed August 14, 1909. Serial No. 512,776.

To all whom it may concern:

Be it'known that I, O'r'ro ll. Mountain, a subject of 'the Germanlhnpcror, residing at Ca'mberwell, count-y oit Kent, Englaiuil, haveinvented certain new and useful Improvements in Hydraulic AirCompressors or Pumps, fully des'crilled and represented in the followingspecification and the accompanying drawings, forming a part of the same.

This invention relates to a compressor or pump of that type in which aliquid is used for entraining and compressing or condensing the gaseousfluid, the especial object of the invention being to provide an improvedapparatus of this class adapted especially to be used as an aircompressor or vacuum pump.

In accordance With the present invention, the liquid enters theapparatus in a water jet of annular section, which may be produced byany suitable pump or other liquid supply. This annular water jet issplit up liquid jets from the wheel.

Iover Aand over again, frality ofthe compressors or by a Wheel into aplurality of rotating jets, the Wheel passages being arranged approximately parallel With the axis of the wheel, so that the liquid enters atone end ot the Wheel. or cylinder and is delivered at the opposite end.The rotating jets from the wheel are received in a cylindrical orannularnozzle and the air or other gaseous fluid to be compressed isadmitted at the inlet end of the nozzle passage, so as to be carriedthrough the nozzle and compressed by the The wheel is preferably drivenby the pressure liquid, be ing provided with suitable vanos which securethis result and form the liquid passages.`

" =The ctnnpressing nozzle may deliver into the liquid is furtherdecreased and the pres sure of the air increased, and which may deliverinto a barometric stand pipe or other wise, or the compressing nozzlemay be of such length and design as to complete the desired compression.

The Water may be cooled so as to be used pumps may be used 1n series, sothat each does only part of the compressing.

it' desired,` and a plu,-v

'lhc invention may be applied, also, to condensing vapor.

ln the accompanying drawings forming a part ol this specification, thereis shown tor the purpose otl illustration an apparatus embodying theinvention in a simple and preferred form, especially adapted for use asan air compressor or vacuum pump, and this apparatus will now hedescribed in detail and the invention then pointed out in the claims.

In the drawings :-Figure l is a vertical central section of theapparatus. Figs. 2, 3, 4 and 5 are cross sections on, respectively, thelines 2, 3, 4 and 5 of Fig. l. G is a diagram showing the 'wheelpassages and nozzle developed into a plane.

Referring to the drawings, A is the inlet chamber connected with thepressure liquid `supply through inlet 10, and provided with a centralcircular core 11 forming with the shoulder l2 on the inlet chamber anannular jet opening a. Below the annular jet opening L and core 11' ismounted the wheel B having vanes or partitions 13, two being shown inthe present case, between which are `lormed the water passages the upperends ol which at or near the inlet end ot' the wheel B are in line withthe 'jet hpening a. The passages Z are not open radially to theperiphery of the wheel but are closed by plate or cover 1 outside .thepassages.

'lhe vanos 13 preferably have one ot their sides inclined to thedirecliim ot the jet, so as to rotate the wheel by the pressure liquid.The vanos 12S thus widen toward the outlet end oi the wheel and thisconstruction is preferable as it permits the .vanos 13 and cover 1 to becut away near the wheel outlet so as to form air openings 3 bv whichthc'air is admitted in line with the outlet: end of the wheel andbetween the liquid passages b. With this construction, the passages lgradually contract in width toward the outletoi" the wheel, but they arepretorabl y increaseil correspolidingly in radial depth as shown. sothat the'combinl-d .the Wheel is ihr; rune. 'n, Imaz-lr? miv l nu. .lasfor the wheel openiuf.r at llu inlet und ox. the l when Whil in la@ i.ol the wheel is i pfawieiablysecured oy the pressure liquid, as

area of thelpassag'ee-i 7iy at the mitici en d oi"` lchamber ot' nozzlel).

above described, the wheel may be rotatedl the in'flining of one side ofthe vanes i3 to.

the direction of the is not necessary, but the venes will neverthelesspreferably bc formed as shown, the air openings 2l thus being providedfor and the construction being simple, compact, and especiallyellieient. y

IThe wheel B may be mounted in any suitable manner, but is shown as,carried by the shaft LL extending through the hub 11 and supported incollar bearing l5 at the top-ot' chamber A, being guided in bushes 2 atthe top and bott-om of the core ll. The shatt 14e is shown as extendingabove rap 8 and provided with a belt pulley Sl driven by belt l() bywhich the wheel may be driven inde pendently of or aided by thepressureliquid.

The wheel l5 is inrlosed within-san air chamber C to which air isadmitted so as to surround the outlet end ot' the wheel through inlet1G, which is connected with the con denser or other chamber to beevacuated or vith the supply of air t'or compressing.

Below the air; chamber and `wheel il is a nozzle D in which the air iscarried lorward and compressed by the water jets from the wheel B. Thisnozzle is shown as having a flange mounted on the bottom of the airohanlberC. v The nozzle D is shown as delivering into an expandingsingle chamber nozzle ll, in which the velocity of the liquid isdecreased and the pressure ot' t'he nir increased, butl it will beunderstood that the nozzle l) may be of such length and t'orm as todeliver without the divcrging nozzle, or may deliver to a barometriestand pipe, or otherwise, as desired.

The operation ol the apparatus will be understood from the above andbriel' description.

The water entering the wheel Vil from the annular jet opening a passesthrough the wheel at a high velocity and axially-ot' the wheel. ll`l|evanos lil being set at an angle to the jet, the wheel is rotated by thewater, but as the wheel otlcl's practically no resistance to the water,thev direetion ol' the water is not ehanged substantially, butI thewater is split up into a plurality oll rotating jets, two jets in thepresent case. 'l`l1e liquid jets from the wheel l pass into the nozzle Dpast` whieh they rotate, andthe wheel jets are thus combined in thesingle The air admitted through inlet it? to chamber (l and surroundingthe discharge end ot' the wheel li above the nozzle D is carried intothe upper end of the nozzle D by the water, so that the water and aircuter alternately, the air beingl thus entrained' by the water andpushed downward, so as to be compressed meines 'forming an annularpassage. The oontinuons cylindrical or annular passage in which thewheel jets are combined into a single bodyl Secures an increasedeliieieney compared with nozzles divided into a series ot passages. Y l

"Yhile the apiniratus is preferably' arranged vertically. and therotation ot' the .wheel is preferably secured` by the pressure liquid,it will be understood that the broader features of the invention are notthusI lunited, but that the apparatus may be arranged :l'or the liow ot'liquid otherwise than vertically, and that other modifications may bemade in the apparatus shown within the invention delincd by the claims.

rlhe terni air herein is intended to'inelude gaseous or aeril'orm fluidsgenerally.

l. The combination with a` liquid supply and an annular jet inlet, of awheel provided with a plurality ol passages rotating in line with thejet inlet and extending through the wheel longitudinally of the wheelaxis whereby tl `annular jet is divided into a plurality ot rotatingjets, a nozzle in line with the wheel passages in which the wheel jetsare combined, and an air inlett'or admitting air to the inlety end ofthe nozzle, A

2. The combination with a, liquid supply and a verl ical annular jetyinlet, ot a wheel rotating on a vertical axis and provided with aplurality ot' vertical passages rotating in line with the Iiet openingby which the annular jety is divided into a plurality olY rotating jets,a verticalv stationary nozzle in line with the wheel passages in whichthe wheel jets are eombined.l and an air inlet for admitting air to theinlety end olf the nozzle.

Il. lhe combination with a liquid supply and an annular jet inlet, ot' awheel having its axis within and eoneentrie with thel jet' and providedwith a series ot' vanes inclined tosecurethe rotation ol the wheel bythe water and lorming passages by which the jet is divided into aplurality of rotating jets, a stationary nozzle in line with the wheelpassagcsin which the wheel jets are coinbined, and an air inlet foradmitting air to the inletI end ot' the nozzle.

-l. ln an apparatus of the class described, a wheel provided with aplurality of liquid passages extending tl'n'ough the wheellongitudinally of the wheel axis, in combination'with asin 1ecompressing (passage in linewith the w eel passages an air inlets foryadmitting air 'to the compressing pas sage. for compression by theliquid from the )wheel passages.

5. In an ap aratus of the classdescribed aI wheel provi ed with aplurality of li ui 'passagesA extending' through the wheel onthe wheel,axis in combinal1Qation'withjasingle cylindrical compressin passa eiiii line with the wheel assages an 'air' in ets for-admitting air tofte com ressfor compresslon by the iquidl ing Passage from the wheelpassages. y

6. vThe combination with annular liquid inlet ajof wheel B havin vanes13 extending longitudinally of the w eel axis and forming liquidpassages b, said` vanes increasing 1n Q I7. The combinatmnwith annularliuid .inlet a, longitudinally of the wheel axls and form- 25 width`toward the outlet end of the wheel, of

a compressing'nozzle in line with the liquid 20 passages b, vand an airinlet for admitting air to the inlet end of the nozzle.

of wheel B having vanos exten ing witnesses,

OTTO H. MUELLER. Witnesses:

F. L. RAND,

G. P. PHILLIPPs.

